fix: use single object prop on

feat: provide hasMetaInfo export for other libraries to check if metaInfo has been defined

chore: deprecate _hasMetaInfo

test/plugin-browser.test.js

@@ -72,8 +72,8 @@ describe('plugin', () => {
     })
 
     // no batchUpdate on initialization
-    expect(wrapper.vm.$root._vueMetaInitialized).toBe(false)
-    expect(wrapper.vm.$root._vueMetaPaused).toBeFalsy()
+    expect(wrapper.vm.$root._vueMeta.initialized).toBe(false)
+    expect(wrapper.vm.$root._vueMeta.paused).toBeFalsy()
     expect(triggerUpdateSpy).toHaveBeenCalledTimes(1)
     expect(batchUpdateSpy).not.toHaveBeenCalled()
     jest.clearAllMocks()
@@ -83,8 +83,8 @@ describe('plugin', () => {
     wrapper.setProps({ title })
 
     // batchUpdate on normal update
-    expect(wrapper.vm.$root._vueMetaInitialized).toBe(true)
-    expect(wrapper.vm.$root._vueMetaPaused).toBeFalsy()
+    expect(wrapper.vm.$root._vueMeta.initialized).toBe(true)
+    expect(wrapper.vm.$root._vueMeta.paused).toBeFalsy()
     expect(triggerUpdateSpy).toHaveBeenCalledTimes(1)
     expect(batchUpdateSpy).toHaveBeenCalledTimes(1)
     jest.clearAllMocks()
@@ -94,8 +94,8 @@ describe('plugin', () => {
     wrapper.setProps({ title })
 
     // no batchUpdate when paused
-    expect(wrapper.vm.$root._vueMetaInitialized).toBe(true)
-    expect(wrapper.vm.$root._vueMetaPaused).toBe(true)
+    expect(wrapper.vm.$root._vueMeta.initialized).toBe(true)
+    expect(wrapper.vm.$root._vueMeta.paused).toBe(true)
     expect(triggerUpdateSpy).toHaveBeenCalledTimes(1)
     expect(batchUpdateSpy).not.toHaveBeenCalled()
     jest.clearAllMocks()

test/plugin-server.test.js

@@ -1,4 +1,4 @@
-import { mount, defaultOptions, VueMetaServerPlugin, loadVueMetaPlugin } from './utils'
+import { mount, defaultOptions, hasMetaInfo, VueMetaServerPlugin, loadVueMetaPlugin } from './utils'
 
 jest.mock('../package.json', () => ({
   version: 'test-version'
@@ -7,6 +7,7 @@ jest.mock('../package.json', () => ({
 describe('plugin', () => {
   let Vue
 
+  beforeEach(() => jest.clearAllMocks())
   beforeAll(() => (Vue = loadVueMetaPlugin()))
 
   test('is loaded', () => {
@@ -29,4 +30,43 @@ describe('plugin', () => {
   test('plugin sets package version', () => {
     expect(VueMetaServerPlugin.version).toBe('test-version')
   })
+
+  test('prints deprecation warning once when using _hasMetaInfo', () => {
+    const warn = jest.spyOn(console, 'warn').mockImplementation(() => {})
+
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [defaultOptions.keyName]: {
+        title: 'Hello World'
+      }
+    })
+
+    Vue.config.devtools = true
+    const { vm } = mount(Component, { localVue: Vue })
+
+    expect(vm._hasMetaInfo).toBe(true)
+    expect(warn).toHaveBeenCalledTimes(1)
+
+    expect(vm._hasMetaInfo).toBe(true)
+    expect(warn).toHaveBeenCalledTimes(1)
+    warn.mockRestore()
+  })
+
+  test('can use hasMetaInfo export', () => {
+    const warn = jest.spyOn(console, 'warn').mockImplementation(() => {})
+
+    const Component = Vue.component('test-component', {
+      template: '<div>Test</div>',
+      [defaultOptions.keyName]: {
+        title: 'Hello World'
+      }
+    })
+
+    const { vm } = mount(Component, { localVue: Vue })
+
+    expect(hasMetaInfo(vm)).toBe(true)
+    expect(warn).not.toHaveBeenCalled()
+
+    warn.mockRestore()
+  })
 })

test/utils/index.js

@@ -1,7 +1,7 @@
 import { mount, createLocalVue } from '@vue/test-utils'
 import { renderToString } from '@vue/server-test-utils'
 import VueMetaBrowserPlugin from '../../src/browser'
-import VueMetaServerPlugin from '../../src'
+import VueMetaServerPlugin, { hasMetaInfo } from '../../src'
 
 import {
   keyName,
@@ -15,6 +15,7 @@ import {
 export {
   mount,
   renderToString,
+  hasMetaInfo,
   VueMetaBrowserPlugin,
   VueMetaServerPlugin
 }